.demo-spin-icon-load {
  animation: ani-demo-spin 1s linear infinite;
}

//使 div 元素匀速旋转
@keyframes ani-demo-spin {
  from {
    transform: rotate(0deg);
  }
  50% {
    transform: rotate(180deg);
  }
  to {
    transform: rotate(360deg);
  }
}
